CN217080976U

CN217080976U - Hydraulic cylinder piston convenient to dismouting

Info

Publication number: CN217080976U
Application number: CN202221054416.8U
Authority: CN
Inventors: 段文林
Original assignee: Beijing Changyu Lihua Hydraulic Systems Engineering Design Co ltd
Current assignee: Beijing Changyu Lihua Hydraulic Systems Engineering Design Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-07-29
Anticipated expiration: 2032-05-05

Abstract

The utility model provides a hydraulic cylinder piston convenient to dismouting, including the piston body: the right side of piston body is equipped with the piston rod, the shrinkage pool has been seted up to the right flank of piston body, the opening has been seted up to the inside wall of shrinkage pool, the inner wall of opening is fixed to be inlayed and is had the internal thread ring, the left end fixedly connected with dead lever of piston rod, the left end of dead lever runs through the opening and extends to the left side of opening, the surface of dead lever is threaded, the surface of dead lever and the inner circle threaded connection of internal thread ring, the right flank fixedly connected with reinforcement ring of piston body, two recesses have been seted up to the inner circle of reinforcement ring. This hydraulic cylinder piston convenient to dismouting is convenient for dismantle the piston body of piston rod left end, has improved the dismouting maintenance speed to the piston body to deepen the fastness of piston body when the installation of piston rod left end, can avoid the piston body during operation to appear rocking, reduced the wearing and tearing between piston body and the cylinder.

Description

Hydraulic cylinder piston convenient to dismouting

Technical Field

The utility model relates to a hydraulic cylinder technical field especially relates to a hydraulic cylinder piston convenient to dismouting.

Background

The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and does linear reciprocating motion, has simple structure and reliable work, can remove a speed reducer when realizing reciprocating motion, has no transmission clearance and moves stably, thereby being widely applied to hydraulic systems of various machines, and the hydraulic cylinder has various structural forms and various classification methods: the motion mode can be divided into a linear reciprocating motion type, a rotary swing type and the like.

Hydraulic cylinder is by cylinder and cylinder cap, the piston rod, sealing device, buffer and exhaust apparatus constitute, and the piston is after the long-time piston motion of cylinder inner circle, need overhaul the maintenance to subassembly such as piston and piston rod, but present piston is relatively poor in installation back fastness, the phenomenon of rocking appears easily, thereby increased the wearing and tearing between piston and the cylinder, and present piston is not convenient for carry out the dismouting above the piston rod, the dismouting maintenance speed to the piston has been reduced, therefore, it is necessary to provide a hydraulic cylinder piston of the dismouting of being convenient for and solve above-mentioned technical problem.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a hydraulic cylinder piston convenient to dismouting is used for solving present piston relatively poor at installation back fastness, appears rocking's phenomenon easily to increased the wearing and tearing between piston and the cylinder, and current piston is not convenient for carry out the dismouting above the piston rod, reduced the problem to piston dismouting maintenance speed.

The utility model provides a pair of hydraulic cylinder piston convenient to dismouting, including the piston body: the right side of piston body is equipped with the piston rod, the shrinkage pool has been seted up to the right flank of piston body, the opening has been seted up to the inside wall of shrinkage pool, the inner wall fixed mosaic of opening has the internal thread ring, the left end fixedly connected with dead lever of piston rod, the left end of dead lever runs through the opening and extends to the left side of opening, the surface of dead lever is threaded, the surface of dead lever and the inner circle threaded connection of internal thread ring, the right flank fixedly connected with reinforcing ring of piston body.

Preferably, two grooves are formed in the inner ring of the reinforcing ring, threaded openings are formed in the inner top walls of the two grooves, and fixing bolts are connected to the inner walls of the threaded openings in a threaded mode.

Preferably, the outer surface of the piston rod is provided with an annular hole, two fixing bolts are fixedly connected with fixing pads at the ends close to each other, and one side faces close to each other of the fixing pads are in contact with the inner wall of the annular hole.

Preferably, the inside of shrinkage pool is equipped with sealed the pad, the left surface that seals up contacts with the inside wall of shrinkage pool, the right flank that seals up contacts with the left end of piston rod.

Preferably, the left end of the fixing rod is fixedly connected with a locking screw, and the outer surface of the locking screw is in threaded connection with a locking nut.

Preferably, the right side of the locking nut is in contact with the left side of the piston body, and the outer surface of the piston rod is in contact with the inner wall of the concave hole.

Compared with the prior art, the utility model provides a pair of hydraulic cylinder piston convenient to dismouting has following beneficial effect:

1. the utility model discloses a piston body is provided with the shrinkage pool, can make the left end of piston rod extend to the inside of shrinkage pool, and then be convenient for make and be connected between piston rod and the piston body, be provided with through-hole and internal thread ring through the shrinkage pool, and with the cooperation of piston rod left end dead lever, can make and carry out threaded connection between the surface of dead lever and the internal thread ring, thereby reach the effect of tentatively installing between piston rod and the piston body, be convenient for dismantle the piston body of piston rod left end simultaneously, the dismouting maintenance speed to the piston has been improved.

2. The utility model discloses a be provided with locking screw and lock nut to with the cooperation of the inside fixed subassembly of reinforcing ring, can deepen the fastness of piston body when the installation of piston rod left end, can avoid the phenomenon that the piston body appears rocking when the installation operation of piston rod left end, reduced the wearing and tearing between piston body and the cylinder.

Drawings

Fig. 1 is a schematic perspective view of a piston body according to the present invention;

fig. 2 is a cross-sectional view of a front view of a piston body of the present invention;

fig. 3 is a schematic perspective view of the fixing rod of the present invention;

fig. 4 is an enlarged schematic view of a structure shown in fig. 2 according to the present invention.

Reference numbers in the figures: 1. a piston body; 2. a piston rod; 3. a reinforcing ring; 4. concave holes; 5. fixing the rod; 6. a port; 7. an internally threaded ring; 8. a groove; 9. a threaded opening; 10. fixing the bolt; 11. an annular aperture; 12. a fixing pad; 13. locking the nut; 14. a gasket; 15. and locking the screw rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1, 2, 3 and 4, a piston of a hydraulic cylinder, which is easy to disassemble and assemble, includes a piston body 1: the right side of piston body 1 is equipped with piston rod 2, shrinkage pool 4 has been seted up to the right flank of piston body 1, opening 6 has been seted up to the inside wall of shrinkage pool 4, the inner wall of opening 6 is fixed to be inlayed and is had internal thread ring 7, the left end fixedly connected with dead lever 5 of piston rod 2, the left end of dead lever 5 runs through opening 6 and extends to the left side of opening 6, the screw thread has been seted up to the surface of dead lever 5, the surface of dead lever 5 and the inner circle threaded connection of internal thread ring 7, the right flank fixedly connected with reinforcing ring 3 of piston body 1.

In the specific implementation process, the inner ring of the reinforcing ring 3 is provided with two grooves 8, the inner top walls of the two grooves 8 are both provided with threaded openings 9, the inner walls of the two threaded openings 9 are both in threaded connection with fixing bolts 10, the outer surface of the piston rod 2 is provided with an annular hole 11, one ends of the two fixing bolts 10 close to each other are both fixedly connected with fixing pads 12, one side surfaces of the two fixing pads 12 close to each other are both in contact with the inner wall of the annular hole 11, the fixing bolts 10 can be used for rapidly clamping and fixing the outer part of the piston rod 2 through the rotation of the fixing bolts 10 in the threaded openings 9 and the matching of the fixing pads 12 and the annular hole 11, the connection effect between the piston body 1 and the piston rod 2 is improved, a sealing gasket 14 is arranged in the concave hole 4, the left side surface of the sealing gasket 14 is in contact with the inner side wall of the concave hole 4, and the right side surface of the sealing gasket 14 is in contact with the left end of the piston rod 2, the piston rod 2 and the concave hole 4 can be sealed through the sealing gasket 14, the sealing effect between the piston rod 2 and the piston body 1 is improved, and the phenomenon that oil inside the cylinder barrel leaks is avoided.

The left end fixedly connected with locking screw 15 of dead lever 5, locking screw 15's surface threaded connection has lock nut 13, and lock nut 13's the right flank contacts with the left surface of piston body 1, and the surface of piston rod 2 contacts with the inner wall of shrinkage pool 4, through locking screw 15 and lock nut 13, can deepen the piston rod 2 and the piston body 1 between be connected, has improved the fastness when connecting the installation.

The utility model provides a pair of hydraulic cylinder piston's theory of operation convenient to dismouting as follows: when the piston body 1 is disassembled, firstly, the locking nut 13 is loosened through a wrench, the locking nut 13 can be taken down from the upper part of the fixing rod 5, then, the fixing bolt 10 is loosened, the clamping and fixing of the piston rod 2 by the fixing bolt 10 can be released, and then, the piston body 1 is rotated, so that the piston body 1 can be quickly taken down from the left end of the piston rod 2, and the piston body 1 is convenient to overhaul and maintain;

when piston body 1 overhauls the back installation, at first install piston body 1 at the left end of piston rod 2, in the installation, can make and carry out threaded connection between dead lever 5 and the internal thread ring 7, and can make the locking screw 15 of dead lever 5 left end pass through opening 6, then reuse lock nut 13 to locking screw 15 and piston body 1 left side between lock fixed, rotate fixing bolt 10 again at last, can make fixing bolt 10 press from both sides tightly the surface of piston rod 2 once more, then accomplished the firm installation to piston body 1.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A hydraulic cylinder piston convenient to disassemble and assemble is characterized by comprising a piston body (1): the right side of piston body (1) is equipped with piston rod (2), shrinkage pool (4) have been seted up to the right flank of piston body (1), opening (6) have been seted up to the inside wall of shrinkage pool (4), the inner wall of opening (6) is fixed to be inlayed and is had interior screw thread ring (7), the left end fixedly connected with dead lever (5) of piston rod (2), the left end of dead lever (5) runs through opening (6) and extends to the left side of opening (6), the surface of dead lever (5) is seted up threadedly, the surface of dead lever (5) and the inner circle threaded connection of interior screw thread ring (7), the right flank fixedly connected with reinforcing ring (3) of piston body (1).

2. The hydraulic oil cylinder piston convenient to disassemble and assemble according to claim 1, characterized in that the inner ring of the reinforcing ring (3) is provided with two grooves (8), the inner top walls of the two grooves (8) are provided with threaded openings (9), and the inner walls of the two threaded openings (9) are in threaded connection with fixing bolts (10).

3. The hydraulic oil cylinder piston convenient to disassemble and assemble according to claim 2 is characterized in that an annular hole (11) is formed in the outer surface of the piston rod (2), fixing pads (12) are fixedly connected to the ends, close to each other, of the two fixing bolts (10), and one side face, close to each other, of the two fixing pads (12) is in contact with the inner wall of the annular hole (11).

4. The hydraulic oil cylinder piston convenient to disassemble and assemble according to claim 1 is characterized in that a sealing gasket (14) is arranged inside the concave hole (4), the left side face of the sealing gasket (14) is in contact with the inner side wall of the concave hole (4), and the right side face of the sealing gasket (14) is in contact with the left end of the piston rod (2).

5. The hydraulic oil cylinder piston convenient to disassemble and assemble as claimed in claim 1, is characterized in that a locking screw (15) is fixedly connected to the left end of the fixing rod (5), and a locking nut (13) is connected to the outer surface of the locking screw (15) in a threaded manner.

6. A hydraulic oil cylinder piston convenient to disassemble and assemble according to claim 5 is characterized in that the right side face of the locking nut (13) is in contact with the left side face of the piston body (1), and the outer surface of the piston rod (2) is in contact with the inner wall of the concave hole (4).